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Classe PrecedenceConstraint

Specifies the properties for configuring a precedence constraint between two containers. This class cannot be inherited.

Hierarquia de herança

System.Object
  Microsoft.SqlServer.Dts.Runtime.DtsObject
    Microsoft.SqlServer.Dts.Runtime.PrecedenceConstraint

Namespace:  Microsoft.SqlServer.Dts.Runtime
Assembly:  Microsoft.SqlServer.ManagedDTS (em Microsoft.SqlServer.ManagedDTS.dll)

Sintaxe

'Declaração
Public NotInheritable Class PrecedenceConstraint _
    Inherits DtsObject _
    Implements IDTSName, IDTSPersist, IComponent, IDisposable
'Uso
Dim instance As PrecedenceConstraint
public sealed class PrecedenceConstraint : DtsObject, 
    IDTSName, IDTSPersist, IComponent, IDisposable
public ref class PrecedenceConstraint sealed : public DtsObject, 
    IDTSName, IDTSPersist, IComponent, IDisposable
[<SealedAttribute>]
type PrecedenceConstraint =  
    class 
        inherit DtsObject 
        interface IDTSName 
        interface IDTSPersist 
        interface IComponent 
        interface IDisposable 
    end
public final class PrecedenceConstraint extends DtsObject implements IDTSName, IDTSPersist, IComponent, IDisposable

O tipo PrecedenceConstraint expõe os membros a seguir.

Propriedades

  Nome Descrição
Propriedade pública ConstrainedExecutable Gets the name of a constrained container. This property is read-only.
Propriedade pública CreationName Gets the string used by the Integration Services runtime to create an instance of the PrecedenceConstraint object and add the object to the PrecedenceConstraints collection. This property is read-only.
Propriedade pública Description Gets or sets a description for the constraint.
Propriedade pública EvalOp Gets or sets the evaluation operations used by the precedence constraint.
Propriedade pública EvaluatesTrue Gets a value that indicates whether the specified Value property evaluates to true. This property is read-only.
Propriedade pública Expression Gets or sets the expression that the precedence constraint uses if EvalOp is set to Expression, ExpressionAndConstraint, or ExpressionOrConstraint.
Propriedade pública ID Gets the GUID of the precedence constraint. This property is read-only.
Propriedade pública LogicalAnd Gets or sets a Boolean value that indicates whether multiple constraints work together.
Propriedade pública Name Gets or sets the unique name of the precedence constraint.
Propriedade pública Parent Gets the parent container of the PrecedenceConstraint.
Propriedade pública PrecedenceExecutable Gets the name of the precedence executable. This property is read-only.
Propriedade pública Site Infraestrutura. Gets or sets the site of the precedence constraint.
Propriedade pública Value Gets or sets the constraint type of Success, Failure, or Completion.

Início

Métodos

  Nome Descrição
Método público Dispose This method is inherited from the IDisposable.Dispose method, which is a generic mechanism to explicitly tell an object to perform cleanup.
Método público Equals Determines whether two object instances are equal. (Herdado de DtsObject.)
Método público GetHashCode Returns the hash code for this instance. (Herdado de DtsObject.)
Método público GetType (Herdado de Object.)
Método público LoadFromXML This method is not callable by your application code. Loads a package containing precedence constraints that are saved as .xml, use the Application.LoadPackage method.
Método público SaveToXML This method is not callable by your application code. Saves a package as .xml, use the Application.SaveToXml method.
Método público ToString (Herdado de Object.)

Início

Eventos

  Nome Descrição
Evento público Disposed Adds an event handler to listen to the Disposed event on the precedence constraint.

Início

Comentários

You can specify the precedence and constrained executables that the precedence constraint connects, the expression and constraint that determine whether the constrained executable runs, and whether the precedence constraint works in concert with other precedence constraints.

Segurança de thread

Qualquer membro público static (Shared no Visual Basic) desse tipo é seguro para threads. Não há garantia de que qualquer membro de instância seja seguro para threads.

Consulte também

Referência

Namespace Microsoft.SqlServer.Dts.Runtime